Earthquake with magnitude of ML 1.4 on date 18-12-2021 and time 11:57:37 (Italy) in region 1 km W Osio Sopra (BG)

A magnitude ML 1.4 earthquake occured in region: 1 km W Osio Sopra (BG), on

  • 18-12-2021 10:57:37 (UTC)
  • 18-12-2021 11:57:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6270, 9.5780 at 26 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Osio Sopra BG 1 5235 5235
Osio Sotto BG 2 12443 17678
Filago BG 2 3218 20896
Boltiere BG 3 6013 26909
Brembate BG 3 8616 35525
Dalmine BG 3 23281 58806
Madone BG 4 3959 62765
Levate BG 4 3809 66574
Verdellino BG 4 7663 74237
Capriate San Gervasio BG 4 8066 82303
Verdello BG 5 8018 90321
Bonate Sotto BG 5 6670 96991
Ciserano BG 5 5769 102760
Trezzo sull'Adda MI 5 12063 114823
Treviolo BG 6 10682 125505
Chignolo d'Isola BG 6 3335 128840
Bottanuco BG 6 5148 133988
Lallio BG 6 4172 138160
Stezzano BG 6 13018 151178
Arcene BG 6 4811 155989
Pontirolo Nuovo BG 6 4974 160963
Canonica d'Adda BG 6 4474 165437
Vaprio d'Adda MI 7 8808 174245
Bonate Sopra BG 7 9630 183875
Comun Nuovo BG 7 4331 188206
Pognano BG 7 1602 189808
Suisio BG 7 3846 193654
Terno d'Isola BG 7 8014 201668
Presezzo BG 7 4898 206566
Grezzago MI 8 3030 209596
Curno BG 8 7651 217247
Ponte San Pietro BG 8 11478 228725
Trezzano Rosa MI 8 5141 233866
Zanica BG 8 8616 242482
Medolago BG 8 2332 244814
Lurano BG 8 2792 247606
Pozzo d'Adda MI 8 6032 253638
Mozzo BG 9 7481 261119
Azzano San Paolo BG 9 7602 268721
Castel Rozzone BG 9 2916 271637
Busnago MB 9 6750 278387
Spirano BG 9 5700 284087
Solza BG 9 2079 286166
Fara Gera d'Adda BG 9 7979 294145
Cornate d'Adda MB 9 10648 304793
Urgnano BG 9 9735 314528
Roncello MB 10 4431 318959
Mapello BG 10 6815 325774
Brembate di Sopra BG 10 7892 333666
Basiano MI 10 3650 337316
Valbrembo BG 10 4229 341545
Bergamo BG 10 119381 460926
Ambivere BG 11 2398 463324
Orio al Serio BG 11 1770 465094
Brignano Gera d'Adda BG 11 6031 471125
Sotto il Monte Giovanni XXIII BG 11 4408 475533
Calusco d'Adda BG 11 8328 483861
Masate MI 11 3530 487391
Mezzago MB 11 4408 491799
Cologno al Serio BG 11 11133 502932
Paladina BG 12 4055 506987
Verderio LC 12 5729 512716
Carvico BG 12 4656 517372
Treviglio BG 12 29706 547078
Paderno d'Adda LC 12 3907 550985
Cassano d'Adda MI 12 18880 569865
Barzana BG 12 1951 571816
Inzago MI 12 10927 582743
Grassobbio BG 12 6406 589149
Sulbiate MB 12 4186 593335
Bellusco MB 12 7354 600689
Ornago MB 13 4931 605620
Seriate BG 13 25182 630802
Robbiate LC 13 6324 637126
Pagazzano BG 13 2090 639216
Aicurzio MB 13 2101 641317
Almè BG 13 5652 646969
Villa d'Adda BG 13 4723 651692
Ponteranica BG 13 6849 658541
Pontida BG 13 3301 661842
Cambiago MI 13 6843 668685
Cavenago di Brianza MB 13 7261 675946
Imbersago LC 14 2400 678346
Gessate MI 14 8872 687218
Almenno San Bartolomeo BG 14 6209 693427
Bernareggio MB 14 10992 704419
Villa d'Almè BG 14 6712 711131
Almenno San Salvatore BG 14 5749 716880
Bellinzago Lombardo MI 14 3836 720716
Gorle BG 14 6610 727326
Palazzago BG 14 4475 731801
Torre Boldone BG 14 8690 740491
Morengo BG 14 2554 743045
Ghisalba BG 14 6175 749220
Cavernago BG 15 2624 751844
Ronco Briantino MB 15 3456 755300
Pedrengo BG 15 6042 761342
Sorisole BG 15 9073 770415
Calvenzano BG 15 4188 774603
Casirate d'Adda BG 15 4115 778718
Brusaporto BG 15 5569 784287
Caravaggio BG 15 16049 800336
Cisano Bergamasco BG 15 6394 806730
Merate LC 15 14852 821582
Caprino Bergamasco BG 15 3105 824687
Ranica BG 16 5981 830668
Scanzorosciate BG 16 10076 840744
Osnago LC 16 4806 845550
Cernusco Lombardone LC 16 3876 849426
Carnate MB 16 7280 856706
Burago di Molgora MB 16 4273 860979
Roncola BG 16 766 861745
Martinengo BG 16 10448 872193
Pozzuolo Martesana MI 16 8458 880651
Bariano BG 16 4342 884993
Alzano Lombardo BG 16 13636 898629
Albano Sant'Alessandro BG 16 8252 906881
Villa di Serio BG 16 6668 913549
Vimercate MB 16 25938 939487
Brivio LC 16 4631 944118
Arzago d'Adda BG 16 2718 946836
Lomagna LC 16 4935 951771
Fornovo San Giovanni BG 16 3429 955200
Bagnatica BG 16 4292 959492
Strozza BG 17 1083 960575
Calco LC 17 5289 965864
Usmate Velate MB 17 10205 976069
Caponago MB 17 5245 981314
Pessano con Bornago MI 17 9109 990423
Gorgonzola MI 17 20233 1010656
Torre de' Roveri BG 17 2436 1013092
Costa di Mezzate BG 17 3333 1016425
Sedrina BG 18 2444 1018869
Calcinate BG 18 5958 1024827
Capizzone BG 18 1270 1026097
Montevecchia LC 18 2623 1028720
Ubiale Clanezzo BG 18 1394 1030114
Olgiate Molgora LC 18 6397 1036511
Misano di Gera d'Adda BG 18 2964 1039475
Torre de' Busi LC 18 2072 1041547
Truccazzano MI 18 6000 1047547
Romano di Lombardia BG 18 20217 1067764
Rivolta d'Adda CR 18 8114 1075878
Montello BG 18 3260 1079138
Vailate CR 18 4596 1083734
Agrate Brianza MB 18 15426 1099160
Bedulita BG 18 746 1099906
Mornico al Serio BG 18 2965 1102871
Melzo MI 19 18710 1121581
Airuno LC 19 2879 1124460
Monte Marenzo LC 19 1947 1126407
San Paolo d'Argon BG 19 5591 1131998
Bussero MI 19 8582 1140580
Cortenuova BG 19 1978 1142558
Bolgare BG 19 6151 1148709
Mozzanica BG 19 4589 1153298
Concorezzo MB 19 15631 1168929
Nembro BG 19 11622 1180551
Fara Olivana con Sola BG 20 1293 1181844
Arcore MB 20 17874 1199718
Zogno BG 20 9029 1208747
Agnadello CR 20 3845 1212592

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Bergamo (119381 inhabitants)
24 Km E of Monza (122671 inhabitants)
28 Km E of Sesto San Giovanni (81608 inhabitants)
29 Km E of Cinisello Balsamo (75078 inhabitants)
35 Km E of Milano (1345851 inhabitants)
43 Km E of Rho (50434 inhabitants)
43 Km E of Como (84495 inhabitants)
51 Km W of Brescia (196480 inhabitants)
51 Km E of Legnano (60262 inhabitants)
56 Km E of Busto Arsizio (83106 inhabitants)
59 Km NE of Pavia (72576 inhabitants)
61 Km E of Gallarate (53343 inhabitants)
62 Km E of Varese (80799 inhabitants)
65 Km N of Piacenza (102191 inhabitants)
65 Km NW of Cremona (71901 inhabitants)
66 Km NE of Vigevano (63310 inhabitants)
77 Km E of Novara (104380 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.4 2021-12-18
10:57:37
45.6272 9.5782 26 2022-03-30
13:04:23
Bollettino Sismico Italiano INGV 98820631
Reviewed
Rev100
ML 2.2 2021-12-18
10:57:37
45.6165 9.5805 25 2021-12-18
11:06:54
Sala Sismica INGV-Roma 98668511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-18 10:57:37 ± 0.12
Latitude 45.6272 ± 0.0081
Longitude 9.5782 ± 0.0064
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98820631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 657
Semi-minor axis of confidence ellipse (meter) 643
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19610
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 98668511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-18 11:06:54

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 98820631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-15 12:31:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SIRI.HNZ. 2021-12-18T10:59:48.88 3.0 undecidable manual Pg 26.01 0
IV.POFI.HHZ. 2021-12-18T10:59:41.97 3.0 undecidable manual Sn -8.74 0
IV.PETRA.HHZ. 2021-12-18T10:59:41.10 3.0 undecidable manual Pn -0.49 0
SL.LJU.BHZ. 2021-12-18T10:59:33.62 3.0 undecidable manual Sg 19.67 0
IV.MRB1.HHZ. 2021-12-18T10:59:21.00 3.0 undecidable manual Pg 14.11 0
IV.CDRU.HHZ. 2021-12-18T10:59:14.26 3.0 undecidable manual Pn -1.65 0
IV.SSFR.HHZ. 2021-12-18T10:59:03.19 3.0 undecidable manual Sn -4.46 0
IV.APEC.HHZ. 2021-12-18T10:58:57.65 3.0 undecidable manual Sn -3.4 0
IV.OFFI.HHZ. 2021-12-18T10:58:56.74 3.0 negative manual Pg 17.15 0
IT.GLNS.HNZ. 2021-12-18T10:58:56.69 3.0 undecidable manual Pn -1.72 0
IV.LAV9.HHZ. 2021-12-18T10:58:51.77 3.0 undecidable manual Pn 4.37 0
IV.MC2.EHZ. 2021-12-18T10:58:44.76 3.0 undecidable manual Pg 8.4 0
IV.MURB.HHZ. 2021-12-18T10:58:38.25 3.0 undecidable manual Pg 9.92 0
IV.LNSS.HHZ. 2021-12-18T10:58:35.65 3.0 positive manual Pn -3 0
IV.ARVD.HHZ. 2021-12-18T10:58:24.68 3.0 negative manual Pn -4.17 0
SI.MOSI.HHZ. 2021-12-18T10:58:16.55 0.6 undecidable manual S 34 1.1961 54 0.87 30
ST.CARE.HNZ. 2021-12-18T10:58:13.93 0.6 undecidable manual S 44 1.1116 97 0.4 38
IV.IMOL.HNZ. 2021-12-18T10:58:10.16 3.0 negative manual Pn -1.93 0
CH.FUSIO.HHZ. 2021-12-18T10:58:10.97 0.3 undecidable manual S 323 1.0423 98 -0.53 56
SI.LUSI.HHZ. 2021-12-18T10:58:09.44 0.3 undecidable manual S 70 1.0081 98 -1.03 45
IV.MBAL.EHZ. 2021-12-18T10:58:07.03 0.3 undecidable manual S 85 0.8975 99 -0.21 62
CH.BERNI.HHE. 2021-12-18T10:58:05.71 0.3 undecidable manual S 21 0.8445 100 0.01 65
ST.RONC.EHZ. 2021-12-18T10:58:04.19 0.3 undecidable manual S 64 0.8085 101 -0.47 60
IV.MABI.HHZ. 2021-12-18T10:58:03.18 0.3 undecidable manual S 56 0.7797 101 -0.62 57
SI.MOSI.HHZ. 2021-12-18T10:58:00.69 0.3 undecidable manual P 34 1.1961 54 0.99 43
IV.SALO.HHZ. 2021-12-18T10:58:00.69 0.3 undecidable manual S 90 0.6610 103 0.31 64
IV.VARE.HHZ. 2021-12-18T10:57:59.17 0.3 undecidable manual S 293 0.6124 105 0.19 66
ST.CARE.HNZ. 2021-12-18T10:57:58.48 0.3 undecidable manual P 44 1.1116 97 0.02 61
CH.FUSIO.HHZ. 2021-12-18T10:57:57.14 0.6 undecidable manual P 323 1.0423 98 -0.15 41
IV.SGAL.EHZ. 2021-12-18T10:57:56.18 0.3 undecidable manual S 97 0.5162 108 -0.05 69
SI.LUSI.HHZ. 2021-12-18T10:57:56.77 0.3 undecidable manual P 70 1.0081 98 0.07 62
IV.MBAL.EHZ. 2021-12-18T10:57:55.32 0.6 undecidable manual P 85 0.8975 99 0.49 39
CH.MUGIO.HHZ. 2021-12-18T10:57:54.80 0.3 undecidable manual S 308 0.4757 109 -0.31 66
CH.BERNI.HHE. 2021-12-18T10:57:54.44 0.3 undecidable manual P 21 0.8445 100 0.5 59
ST.RONC.EHZ. 2021-12-18T10:57:53.42 0.3 undecidable manual P 64 0.8085 101 0.08 65
IV.BOZZ.HNE. 2021-12-18T10:57:53.95 0.6 undecidable manual P 129 0.8202 100 0.42 40
IV.BOB.HNE. 2021-12-18T10:57:53.72 1.0 undecidable manual P 186 0.8633 100 -0.54 20
IV.MABI.HHZ. 2021-12-18T10:57:52.49 0.3 undecidable manual P 56 0.7797 101 -0.35 62
IV.SALO.HHZ. 2021-12-18T10:57:51.19 0.3 undecidable manual P 90 0.6610 103 0.32 63
IV.VARE.HHZ. 2021-12-18T10:57:50.13 0.3 undecidable manual P 293 0.6124 105 0.07 68
IV.SGAL.EHZ. 2021-12-18T10:57:48.52 0.3 undecidable manual P 97 0.5162 108 0.05 69
IV.MERA.HNZ. 2021-12-18T10:57:47.00 0.3 undecidable manual S 307 0.1304 147 0.29 72
CH.MUGIO.HHZ. 2021-12-18T10:57:47.48 0.3 undecidable manual P 308 0.4757 109 -0.34 66
IV.MDI.HHZ. 2021-12-18T10:57:47.58 0.3 undecidable manual S 34 0.1718 139 0.13 74
IV.MERA.HNZ. 2021-12-18T10:57:43.03 0.1 undecidable manual P 307 0.1304 147 0.06 100
IV.MDI.HHZ. 2021-12-18T10:57:43.18 0.3 undecidable manual P 34 0.1718 139 -0.22 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MDI.HHE. ML:1.4 0.00012455000000000002 0.1 AML other m 2021-12-18T10:57:48.06
IV.MDI.HHN. ML:1.2 0.0000804 0.3 AML other m 2021-12-18T10:57:48.57
CH.MUGIO.HHN. ML:1.1 0.000023144144999999997 0.3904 AML other m 2021-12-18T10:57:55.62
CH.MUGIO.HHE. ML:1.1 0.00002305426 0.48 AML other m 2021-12-18T10:57:55.40
IV.SGAL.EHE. ML:1.0 0.000022253105000000002 2.1632 AML other m 2021-12-18T10:57:56.93
IV.SGAL.EHN. ML:1.2 0.000028452859999999997 0.3392 AML other m 2021-12-18T10:57:57.20
IV.VARE.HHN. ML:1.2 0.00002371666 3.584 AML other m 2021-12-18T10:57:59.99
IV.VARE.HHE. ML:1.3 0.000027919015 0.576 AML other m 2021-12-18T10:58:00.15
IV.MABI.HHE. ML:1.2 0.000021649999999999998 0.34 AML other m 2021-12-18T10:58:04.08
IV.MABI.HHN. ML:1.5 0.00003315 0.74 AML other m 2021-12-18T10:58:04.22
ST.RONC.EHE. ML:2.0 0.00010899999999999999 0.84 AML other m 2021-12-18T10:58:06.44
ST.RONC.EHN. ML:2.1 0.00014250000000000002 0.44 AML other m 2021-12-18T10:58:06.47
IV.MBAL.EHE. ML:1.6 0.000036295305 1.5232 AML other m 2021-12-18T10:58:08.48
IV.MBAL.EHN. ML:1.5 0.00003173203 0.8768 AML other m 2021-12-18T10:58:08.08
CH.FUSIO.HHN. ML:1.4 0.000020724045 3.9872 AML other m 2021-12-18T10:58:09.96
SI.LUSI.HHN. ML:1.8 0.00004575 0.92 AML other m 2021-12-18T10:58:12.04
SI.LUSI.HHE. ML:1.6 0.0000322 1.58 AML other m 2021-12-18T10:58:12.07
CH.FUSIO.HHE. ML:1.5 0.00002569459 1.4144 AML other m 2021-12-18T10:58:12.92
IV.IMOL.HNE. ML:3.7 0.001122 1.36 AML other m 2021-12-18T10:58:14.09
IV.IMOL.HNN. ML:3.8 0.0014750000000000002 0.06 AML other m 2021-12-18T10:58:15.30
IV.TEOL.HHN. ML:0.0 0.00007944999999999999 0.44 AML other m 2021-12-18T10:58:36.31
IV.APEC.HHE. ML:3.1 0.000124 0.64 AML other m 2021-12-18T10:59:30.08
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download